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Jagadesh
Jagadesh

Reputation: 6807

How to get the list of available folders in a mail account using JavaMail

I am using JavaMail API to connect to my personal account. I have list of folders (labels) in my Gmail account which I created + the default folders like Inbox, Drafts etc. How can I list all the available folders (the default and the user created)?

I can access the particular folder using this API: Folder inbox = store.getFolder("Inbox");. Is there any other API to get the list of folders available in a mail account?

Upvotes: 47

Views: 70023

Answers (6)

Sardaar54
Sardaar54

Reputation: 36

You can right-click on different buttons on the side panel of your mail box and inspect the names for different folders that are used in different mails.

This works for every email client. The list command works but I felt this makes the process quicker.

Upvotes: -1

Mehdi
Mehdi

Reputation: 3763

You can try this:

Folder[] folderList = store.getDefaultFolder().list("*");

Upvotes: 0

dkarp
dkarp

Reputation: 14763

Sergey is close, but by default JavaMail's list() does a LIST "" %, which gives you only top-level folders. GMail puts its system folders (All Mail, Drafts, Sent Mail, Spam, Starred, and Trash) under the non-selectable folder [Gmail], so you really need to do a LIST "" * instead. Otherwise, you'll just get back INBOX, [Gmail], and your labels.

Here's some sample code that connects to GMail, fetches the folder list, and prints out the name and message count for each non-\NoSelect folder (i.e. the ones that aren't just hierarchy placeholders, like [Gmail]):

Properties props = System.getProperties();
props.setProperty("mail.store.protocol", "imaps");
try {
    Session session = Session.getDefaultInstance(props, null);
    javax.mail.Store store = session.getStore("imaps");
    store.connect("imap.gmail.com", "<username>@gmail.com", "<password>");
    javax.mail.Folder[] folders = store.getDefaultFolder().list("*");
    for (javax.mail.Folder folder : folders) {
        if ((folder.getType() & javax.mail.Folder.HOLDS_MESSAGES) != 0) {
            System.out.println(folder.getFullName() + ": " + folder.getMessageCount());
        }
    }
} catch (MessagingException e) {
    e.printStackTrace();
}

Upvotes: 73

Sergei Tachenov
Sergei Tachenov

Reputation: 24879

How about store.getDefaultFolder().list()? Just a guess, though.

Upvotes: 0

Nishant
Nishant

Reputation: 55866

Here is the code that works. This will give you handle to all the Labels. To go deeper in a folder, you may perform folder.list() or you can use store.getDefaultFolder().list("*") to retrieve all the folders and sub-folders as suggested in the other answer.

Properties props = System.getProperties();
props.setProperty("mail.store.protocol", "imaps");
Session session = Session.getDefaultInstance(props, null);
Store store = session.getStore("imaps");
store.connect("imap.gmail.com", "[email protected]", "UR_P@ZZWRD");
System.out.println(store);

Folder[] f = store.getDefaultFolder().list();
for(Folder fd:f)
    System.out.println(">> "+fd.getName());

Output:

>> INBOX
>> Personal
>> Receipts
>> Travel
>> Work
>> [Gmail]

OLD ANSWER

Please note this is not correct, it's rightly pointed in this answer by dkarp

These should do:

http://java.sun.com/products/javamail/javadocs/javax/mail/Store.html#getSharedNamespaces%28%29

http://java.sun.com/products/javamail/javadocs/javax/mail/Store.html#getUserNamespaces%28java.lang.String%29

Upvotes: 49

user889386
user889386

Reputation: 89

You can access other folders like this 

store.getFolder("[Gmail]/Sent Mail");
store.getFolder("[Gmail]/Drafts");

etc.

Upvotes: 8

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